body {
    background-image: url(https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1606140725338&di=3b664098aa009b242b393b99c51e03b1&imgtype=0&src=http%3A%2F%2Fpic1.win4000.com%2Fwallpaper%2F7%2F58e745a879945.jpg);
}

.container {
    width: 40%; 
    height: 20%; 
    position: absolute; 
    left:30%; top:20%; 
    text-align: center;
}

P {
    font-size: 20px;
}